In leather goods (handbags/wallets) manufacturing, edge sealing is not only a cosmetic treatment but also a crucial step in protecting the leather.

However, the cause of edge cracking often lies not in the leather itself but rather in the edge oil formulation and process.

Some low-cost production lines on the market use high-concentration edge oil (some even add filler powder to increase consistency), allowing for a single coat of color. While efficient, this method suffers from poor flexibility and prone to cracking after repeated bending.

In contrast, high-end handbag factories prefer low-concentration, high-penetration, high-quality edge oil. This type of edge oil takes time to develop and requires 4-7 reapplies. Each coat is meticulously sanded and thoroughly dried to ensure a secure bond between the edge and the leather and excellent bending resistance.

It is these seemingly subtle process differences that determine whether a handbag's edge remains smooth and flat after years of use, or cracks and peels.

In leather goods (handbags/wallets) craftsmanship, details are not a plus point, but a watershed that determines quality.